Filter.



, H. N. KILBY.

FILTER.

Armcmou FILED m. n. ma.

Pmnma June 12, 1917.

3 SHEETS-SHEET I.

' H; N. KILBY. A

FILTER.

1,229,755 I APPLICATION min IAII. l's. ms. Patented June 12, 1917. V v a SMEETHIIEET z.

1n: mlmmomm,mmm. I c.

HERBERT N. KILBY, or CLEVELAND, 01110.

FILTER. i

I '0 all whom it may concern:

Be itknown that I, HERBERT N... K1131,

a citizen of theUnitedStates, residing'at as the case may be. ing and unlocking operatlon 1s efi'ected 1n stages, so

Cleveland, in the county of Guyahoga and State" of Ohio, have invented certain new and useful Improvements in Filters, of.

which the following is a specification. 'My invention has generalapplication to filters and is in the nature of a locking structure for filters embodying a casing constructed purpose of the locking structure being to hold the separable parts of this casing in fluid tight engagement.

The main object of my invention resides in the provision of a structure whereby the locking devices disposedadjacent each line the separable parts of a casofjoiriture of ing may be successively locked or unlocked Preferably, this look that all of the locks along one line of o1nture are simultaneously operated andthis operation completed before a simiy In connection wlth'the loclring structure above referred to, my inventlon also con-' U sists inthe provision of a s1ngleop'erat1ngunit whereby the the stages mentioned.-

'lar operation is instituted on the next suc- By this successive, locking and releasing structure, considerceeding set of locks.

ably less power is requi dto complete the locking of the entire casing than would be the case where all of'the locking members acted simultaneously. I Y

locking may be effected in invention also contemplates a further be moved away by the same ,operating unit the casing may stationary part used for releasing the locking structures after this releasehas been effected,

, tion s shown of drawings, in which reference designate corresponding parts,

and in whicha Still a further object of my invention residesin the locking structure including an inclined surface on parts and a locking engage this surface at member arranged to such an angle that it forces the movable against the stationary part byv movement of the locking member itself. 1

' The preferred embodiment of my'inven- 'in the accompanying sheets similar characters of Figure 1 is anend elevation of the filter Q embodyinig my' in elliiwg of at least two separable parts, the

step in that means arefprovided whereby the movable part of from the legs of one of the separable Specification of Letters Patent. Patented 'Ju n 12,1917. Application filed January 13,1915. Serial lie-2,069. i i I Fig. 2 is a rear elevation of the same with the central "port on brokenaway,

' Fig.3 shows across sectional View of the same filter with my invention applied thereto and showing the various parts in release pesitionfin broken lines,

' imrran STATES PATENTOFFICE;

4;is a" fragmentary detail of aportion of my improvement showing its appli-;

cation,

I Fig. is a fragmentary perspective show-' ing an arrangement ofinclined surface fQIC1II1IIIg avportion of'myilocking structure, an 1 i.

Fig. 6 is arear viewiofa slightlymodified form of structurefrom that shown inFig. 2.

I have chosen to illustrate my invention in connection with a filter employing aver-1 tically' disposed stationary plate 1 supported upon end standards 2. Pivotally mounted asat '3 to the up e ortionfof the supportj ing plate 1 is a semi-oval hoodjme'm the member 4"and the in the present instance, the two separable parts of the filtercasing body, these parts having any preferredtype" of fluidftight joint 5 between them.

3 b? miva along its upper I y and lower edges in'a" position directly adjacent its lines of jointureh ff member 1 forming,

hood member carries with the back plate 1, horizontally disposed angle members tervals withlugs signed to 'formja portion of the locking structure to holdthis hood member,

engagement with its supporting member, l to Figs. 3 and"5,g.

By reference particularly it will" be noted that' the ends of these lugs nearest the ends vof I the vertically extending the angles 6, are on'a slight incline to the vertical, as shown at-8 while the providedat repeated in- I 7, ;these lugs being der outer 'j'surface of the, remainder ,oftheir height is straight, I ating with each of these lugs'is; aflocking as'shown at 8 Coiiper member designated generally by the numeral 9, each of these lockinglmembers being. rigidly attached to upper and 1 lower supporting shafts v1O and-'11 respectively. The opposite ends of these locking members are each provided with apairiof', down.-

" wardly extending ears 12, these ears being,

slotted to receive bearing blocks 13 adjusti able inwardly or rearwardly under the. inl fluence offthe 1 adjusting bolts shown at 14. Rotatably,

1 I mounted withinithese bearing; 1 blocks of 'each member 9, a? shaftlfi cars v I rying a roller 16, this roller designed to o erawu on 'theinclined sup: m a

the levers 22 carried by the upper face 8 and the straight surface 9 of its corresponding lug 7. 1

Pivotally cars 17 extending rearwardly from the rear side of the plate 1, are cylinders 18, these ears andcylinders being so arranged that they a whole. These cylinders are provided with inlet pipes 19 and outlet pipes 20 which are designed to control the admission of fluid under pressure toand away from the same to operate upon a piston rigidly attached to a piston rod shown at 21. The upper ends of'these piston rods are pivoted to rearwardly and upwardly extending lever arms 22, as is shown at 23, these lever arms being also rigidly mounted upon the shaft 10. Thus it Wlll appear that movement of the piston rods downwardly from the position shown in Fig. 3, will cause a rotative movement of'the shaft 10, which will in turn cause operation of all of the locking members disposed along the upper edge of the filter and cause the same to relieve the tight engagement between the upper edge of the hood member 4 and the back plate.

In order that the also be operated, this after the upper erated and also I have provided operation taking place set of locks have been opby the same operating unit, the two extreme ends of the shaft 10 with a second lever shown at 24, these levers being of a bifurcated nature and being provided at their end With cross pins such as shown at 25. These cross pins are designed to operate in the slots 26 in the upper end of each of the connecting rods shown at 27, the length of the slots 26 being such that the pins 25 will travel from one extreme position,

and 3 to the opposite extreme position, the

time interval being such that the unlocking of the upper series of locks will have'been completed when this stage is reached. F urthermovement of the pistonrods 21 will cause a continued movement of all of the upper locking members 9 with their shaft and will also begin a complete and similar unlocking operation of each of the locking members 9 disposed along the lower line of jointure ofthe two parts of the casing. By virtue of the pivotal connections of the connecting rods 28 with levers 29 rigidly attached to the lower shaft 11, these levers 29 correspond in purpose and function with shaft 10. Thus, it will be apparent that these two sets oflocks are unlocked in successive stages and consequently the power required for unlocking them in this manner will bev much less than if they had been'unlocked simultaneously.

In order that the hood member 4 may also be elevated after the completion of the unlpckingoperatlons just described, I have mounted between outstanding lie adjacent each end of the filter as,

lower set of locks may as shown in Figs. 1

formed between the endsof the casing 4 and the inside of the end standards 2 and consequently, these rollers 33 are so supported that they slightly overhang the ends of the hood 4. Inasmuch as the hood member 4 is pivoted to the back plate as has been shown at 3 and since the lever arms 81 swing with the shaft 10, the paths of movement of these levers and their points of engagement with the lifting structure carried by the hood, will not be concentric. Therefore, the lever arms 31 have been extended, as shown, and provided with the stirrups 32 in order that the upper limit of travel of the hood may not be extended. Further, it will be noted that the lever arms 31 are so arranged that the distance between their upper edges and the rollers 33 is such that the time interval allowed before they meet,

is such that the unlocking of both sets of locks along the two lines of jointure has been completed. In this manner the same operating unit operating the locking structure, may also be utilized after the completion of the unlocking to cause an elevation of the hood member itself.

From this description, it will be apparent that the unlocking of the two sets of locks is done in successive stages and after the completion of the unlocking action, the lifting operation of the hood sets in. This entire operation is accomplished by the use of a single operating unit in the nature of the two cylinders 18 by the admission of pressure to the upper sides of their pistons, which causes a downward movement of their piston rods 21. The rigid connection between the levers 22 and the upper shaft 10 causes an oscillation of this upper shaft, which in turn will release the upper sets of locks. The lost motion connection formed by the pin 25 and slots 26 in the connecting rod 27, is such that unlocking operation of the lower set of locks sets in immediately after the completion of the unlocking of the upper set. After the lower set has been unlocked, the lever arms 31 willhave traveledto a position of engagement with the rollers, 33 carriedby the upper side of the hood member 4 and continued movement of the piston rods 21 Will cause an elevation of this hood, whichwill eventually assume the position shown in brokenlines in connection with, the. inclined surfaces a 8 forming a portion of the front face of'the lugs7, attention is directed to the fact that the centers of the rollers 12 are in horizon- "tal .alinement with their corresponding :they restupon the straight surfaces 9 and.

consequently the operating shafts 10 and 11 1 are relieved of the torsion due to the tendcrating shafts.

shafts10or .11 and that the incline 8 terminates when these rollers assume a position of horizontal alinement with theirop- When this position isiassurned,the rollers are no longer influenced by theinclined end of the surfaces 8 since en'cy toward reverse movement by the action of the rollers when riding the inclined surfaces. As a result, when the locks have assumcrfl the position shown in Fig. 3, they will remain in this positionof their own accord and a supplemental locking structure for holding them there is unnecessary, However, in order to avoid accidental release of the hood member when in lts elev'atcd position, I have provided the upper shaft 10 with a ratchet shownat 35, this ratchet being designed to cooperate with a.

pawl 36 pivoted in any desired manner.

I have chosen. to show my invention as applied to the specific type of filter shown, for the reason thatan elevation of the hood 30 170 the position indicated in Fig. 3, will expose the entire interior filter element con struction 1n approximately-the same amount of space required for the mounting of the filter when in its closed position. D

In Fig. 6, I have shown a slightly mode fied form of construction, in that the locks along each line of jointure are not all opcrate d simultaneously. This modification,

therefore, consists in the sectional shafts'37 and 38replacing the shaft 10 in Fig. land 2 the sectional shafts 39 and 40 replacing the shaft 11 in Fig. 1. v are shown as being oppositely disposed and, therefore, the cylinder to the right of 'Fig. 6,;will operate to unlock a number of the Also, the cylinders 18 lower "locking members in its first stages of operation with the subsequent release of certain of the upper series of locks while that cylinder shown to the left ofF1g. 6 operates in just the reverse manner. Otherwise,-

the structure is in all respects identical with I that previously described.

lVhatI claim, is: 1 a 1. In a filter, a separable two part casing, one of said parts being pivotally supported to close upon the other part, a locking means independent of said pivotal support d1sposed adjacent opposite lines of jointure of the parts" of said casing, and means for successively releasing the loclting meansadjacent the various lines of ointurem v, '2. In a filter a'separable two part casing,

one of said parts being pivotally supported to close upon'theother part, a locking means --indepen dent of said pivotal support the posed adjacent opposite lines'of jointure of the parts of said casing, means for su'ccessively releasing the lockingmeans adjas cent the various lines of ]o1 nture, and a S1114 .gle operating unit for actuating said look ing means.

In a filter, a=separabletwo part'casing, one of said parts being. pivotally supported to close upon the otherpart, a locking means independent of said pivotal support disposed adjacent opposite lines of ]01I1t111'6 of the parts of said casing, and means for suc cessively releasmg the locking me'ansad1acent the various lines of ointure and mov-.

ing one of the parts of said casing away from the other.

r. In a filter, a'separable two part casing,

one of saidparts being pivotally supported toclose upon the otherpart, a lockingmeans independent of said pivotal support disposed adjacent opposite lines of ointure of the parts of said casing, meanswfor sue cessivcly rcleasil'lg the locking means adja cent the varioi'ls lines of ]o1ntureand moving one of the parts of said caslng away from the other, and. a single operatingunit for actuating said locking "and moving means.

5. In a filter, a separable two part casing, the parts'being arranged to close one upon the'other, a locking means disposed" adja 1 cent opposite lines of jointure of the'p'arts of said casing, operating means for said locking means, and lost motion connecting means between. said lock-mg and operating. means whereby sald locking means'are successively operated.

6. In a filtera separable two part casing,

the parts being arranged to closeone upon the other, a locking means'disposedadja'.

'105 cent opposite linesof -jointure of the parts of said casing, a lost'motion connectionbesa tween the locking means? along different flines of ointure, and operating ineans di-v rectly connected to only one of said locking means. a

7. "Ina filter, a separable itwo-particasing,

the parts being arranged .to close one; u on. the other, a locking means disposed a ja cent. opposite lines of jointure' of the parts of said casing, a lost motion connection be a tween the locking means along different lines of ()lI1l3l11G,'l operating meansdirectly connected to only one of said locking means,

and means operating hetweenonefof said casing to. engage the movable casing. part I locking'means and the movable part of said;

for movement-after said locking means have been successively released. 8. In a filter, a separable two partcasing,

theparts being arranged to close one .upon the other, alocking. means disposed along: opposite linesiof jointure of the parts of,

said casing, operating meansand means actuatedb'y said operating means for releas-I ing one of said locking means after the other locking means has been released.

9. In a filter, a separable two part casing, the parts being arranged to close one upon the other, a locking means disposed adja- .ed to close upon the other part, a locking means disposed along'opposite lines of jointure of said casing including a plurality of locking members, and operating means for operating all of the members along one line of jointure to either lock or release them from said casing before the members along the succeeding line of ointure are operated.

11. In a filter, a separable two part casing, one of said parts being pivotally mounted to close upon the other part, and locking means for holding the parts of said casing together including inclined surfaces on one of said parts, and lock members arranged to cooperate with said surfaces by being brought into wedging engagement therewith, said inclined surfaces terminating at a point where the parts of said casing are securely locked together to relieve said locked members against reverse movement.

12. In a filter, an upright back plate, an oval casing member pivotally mounted to close upon and swing. away from said plate, and locking means for locking said casing member against said plate including an operatingshaft disposed adjacent the upper and lower meeting edges of said casing member and said back plate, and a plurality of locking members on each of said shafts arranged to engage said casing member to force it against said back plate.

13. In a filter, an upright back plate, an oval casing member pivotally mounted to close upon and swing away from said plate, locking means for locking said casing member against said plate including operating shafts disposed one adjacent each the upper and lower meeting edges of said casing member and said lock plate, a plurality of locking members on each of said shafts arranged to engage said casing member to force it against said back plate, and a lost motion connection between: said two shafts so arranged that one set of locking memhers is operated before motion is imparted to the second set.

14. In a filter, an upright back plate, an oval casing member pivotally mounted to can! .91 as: patcnt may be obtaiaed for close upon and swing away from said plate, locking means forlocking said casing member against said plate including operating shafts disposed one adjacent each the upper and lower meeting edges of said casing member and said lock plate, a plurality of locking members on each of said shafts arranged to engage said casing member to,

force it against said back plate, a lost mo-. tion connection between said two shafts so arranged ,that one set of locking members is operated before motion is imparted to the second set, and a single operating unit for operating both sets of locking members.

15. In a filter, a separable two part casing, one of said parts being pivotally mounted to close upon andswing away from the other part, and locking means for locking the parts of said casing together including an inclined surface on one of said parts, and a locking member arranged to engage said surface at an angle to force its part against the other part, said inclined surfaces terminating at a point where said two parts are securely locked together to'relieve said member against reverse movement.

'16. In a filter, a separable two-part casing, one of said parts being pivotally mounted to close upon and swing away from the other part, and locking means for locking the parts of said casing together including an inclined surface on one of said parts and a locking member on the other part arranged V to engage said surface at an angle whereby continued movement of said locking member wedges its part against the other part, said inclmed surface terminating at a point Where said two parts are securely locked to relieve said member against reverse movement.

17. Ina filter, a separable two part casing, one of said parts being pivotally mounted to close upon and swing away from the other part, and locking means for locking the parts of said casing together including an inclined surface on one of said parts, a locking member, a roller adjustably carried by said member, and an operating shaft for said member, said roller and member being arranged to engage said inclined surface to force its part into engagement with the other part, said inclined surface terminating at a point where said two parts are securely locked to' relieve said member against reverse movement.

In testimony whereof I afiix my signature in presence of two witnesses.

HERBERT NNKIILBY.

Witnesses SIDNEY NEWELL, G. M. Bnnnt five cents emhQby addnssing the Commissioner 91. Iateats, Wash1ngton,11; 9. 

